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// ----------------------------------------------------------------------------
//
// Copyright (C) 2006-2017 Fons Adriaensen <fons@linuxaudio.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ----------------------------------------------------------------------------
#ifndef __DECODER_H
#define __DECODER_H
#include <inttypes.h>
#include "global.h"
#include "xover2.h"
#include "nffilt.h"
#include "adconf.h"
class Output
{
public:
Output (void) : _dline (0) {}
~Output (void) { delete[] _dline; }
float _matlf [MAXIP]; // matrix row
float _mathf [MAXIP]; // matrix row
NF_filt1 _nffilt1; // near field filters
NF_filt2 _nffilt2;
NF_filt3 _nffilt3;
NF_filt4 _nffilt4;
int _delay; // delay in samples
float *_dline; // delay buffer
float _gcorr;
float _gain0;
};
class Decoder
{
public:
Decoder (void);
~Decoder (void);
enum { FRAG_SIZE = 256 };
enum { COMP_NFE_IP = 1, COMP_NFE_OP = 2, COMP_LEVEL = 4, COMP_DELAY = 8 };
enum { TEST_OFF, TEST_INT, TEST_EXT };
void init (int frate);
void reset (void);
void set_config (AD_conf *C);
void set_matrix (AD_conf *C);
void set_gain (float gain) { _gain = gain; }
void set_solo (uint64_t solo) { _solo = solo; }
void set_mute (uint64_t mute) { _mute = mute; }
void set_test (int test) { _inp1 = test; }
void process (int n, float *ip[], float *op[], float *ts, float *lm);
private:
void matr1band (int nf, int ind0, int ind1, float *out, Output *Z);
void matr2band (int nf, int ind0, int ind1, float *out, Output *Z);
void make_test (void);
float _frate;
int _nsig0; // number of inputs of degree 0
int _nsig1; // number of inputs of degree 1
int _nsig2; // number of inputs of degree 2
int _nsig3; // number of inputs of degree 3
int _nsig4; // number of inputs of degree 4
int _noutp; // number of outputs
int _nband; // number of frequency bands, 1 or 2
int _dsize; // size of delay lines in samples
int _tsize; // size of test signal in samples
int _comp; // compensation options
int _inp0; // current input
int _inp1; // next input
uint64_t _solo; // solo mask
uint64_t _mute; // mute mask
float _gain; // volume
int _idel; // delay write index
int _itst; // test read index
NF_filt1 _nffilt1 [3]; // near_field filters
NF_filt2 _nffilt2 [5];
NF_filt3 _nffilt3 [7];
NF_filt4 _nffilt4 [9];
LR2conf _lr2conf;
LR2filt _lr2filt [MAXIP];
float _scale [MAXIP];
float _ip_lf [MAXIP][FRAG_SIZE];
float _ip_hf [MAXIP][FRAG_SIZE];
Output _output [MAXOP];
float _sig0 [FRAG_SIZE];
float _sig1 [FRAG_SIZE];
float _sig2 [FRAG_SIZE];
float _sig3 [FRAG_SIZE];
float _sig4 [FRAG_SIZE];
float *_test;
static const float _g_norm [MAXIP];
static const float _g_sn3d [MAXIP];
static const float _g_fuma [16];
};
#endif
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